Date: Fri, 25 Sep 2015 08:11:57 -0500 From: Graham Allan <allan@physics.umn.edu> To: freebsd-questions@freebsd.org Subject: Re: zfs performance degradation Message-ID: <5605481D.10902@physics.umn.edu> In-Reply-To: <6498A090-A2A2-4580-A148-2BCBF68BF2BF@kraus-haus.org> References: <56019211.2050307@dim.lv> <37A37E9D-9D65-4553-BBA2-C5B032163499@kraus-haus.org> <56038054.5060906@dim.lv> <782C9CEF-BE07-4E05-83ED-133B7DA96780@kraus-haus.org> <56040150.90403@dim.lv> <60BF2FC3-0342-46C9-A718-52492303522F@kraus-haus.org> <560412B2.9070905@dim.lv> <8D1FF55C-7068-4AB6-8C0E-B4E64C1BB5FA@kraus-haus.org> <56042209.8040903@dim.lv> <2008181C-F0B5-4581-9D15-11911A1DE41B@kraus-haus.org> <CAFYkXjkdUrcUUdVQW4qgSuEmtifD=mvbvf4k0vq5t9R6dtR1pQ@mail.gmail.com> <6498A090-A2A2-4580-A148-2BCBF68BF2BF@kraus-haus.org>
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On 9/24/2015 7:58 PM, Paul Kraus wrote: > On Sep 24, 2015, at 17:40, CeDeROM <cederom@tlen.pl> wrote: > >> For RAID/NAS use ondy WD RED drives family :-) Others WILL break >> timings with hidden error verify mechanisms.. >> >> http://www.wdc.com/red > > I assume you are referring to the other “color” drives. I have had no > issues with the RE and SE series of Datacenter drives in zpool > configurations. WD Reds are pretty solid, and I have used hundreds of them in ZFS pools without *apparent* issues, while I would never consider the blue or even less Green for this. However they're still a low-cost option - if I'd had the funds I would much rather have used SE or RE!
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